package com.company;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * @author cbf4Life cbf4life@126.com
 * I'm glad to share my knowledge with you all.
 */
public class Client {

    //模拟交易
    public static void main(String[] args) {

        //初始化一张IC卡
        Card card = initIC();
        //显示一下卡内信息
        System.out.println("========初始卡信息：=========");
        showCard(card);

        //是否停止运行标志
        boolean flag = true;
        while (flag) {
            Trade trade = createTrade();

            DeductionFacade.deduct(card, trade);
            //交易成功，打印出成功处理消息
            System.out.println("\n======交易凭证========");
            System.out.println(trade.getTradeNo() + " 交易成功！");
            System.out.println("本次发生的交易金额为：" + trade.getAmount() / 100.0 + " 元");
            //展示一下卡内信息
            showCard(card);

            System.out.print("\n是否需要退出？(Y/N)");
            if (getInput().equalsIgnoreCase("y")) {
                flag = false;  //退出；
            }
        }

    }

    //初始化一个IC卡
    private static Card initIC() {
        Card card = new Card();
        card.setCardNo("1100010001000");
        card.setFreeMoney(100000);  //一千元
        card.setSteadyMoney(80000); //八百元
        return card;
    }

    //产生一条交易
    private static Trade createTrade() {
        Trade trade = new Trade();
        System.out.print("请输入交易编号：");
        trade.setTradeNo(getInput());
        System.out.print("请输入交易金额：");
        trade.setAmount(Integer.parseInt(getInput()));

        //返回交易
        return trade;
    }

    //打印出当前卡内交易余额
    public static void showCard(Card card) {

        System.out.println("IC卡编号:" + card.getCardNo());
        System.out.println("固定类型余额：" + card.getSteadyMoney() / 100.0 + " 元");
        System.out.println("自由类型余额：" + card.getFreeMoney() / 100.0 + " 元");
    }

    //获得键盘输入
    public static String getInput() {
        String str = "";
        try {
            str = (new BufferedReader(new InputStreamReader(System.in))).readLine();
        } catch (IOException e) {
            //异常处理
        }
        return str;
    }


}
